Flex 4 tabbing broken?

Question

I have a fairly basic login view:
<s:SkinnableContainer width="100%" height="100%" >
    <s:layout>
        <s:VerticalLayout horizontalAlign="center"/>
    </s:layout>
    <mx:Form defaultButton="{loginBtn}">
        <mx:FormItem label="Username:">
            <s:TextInput id="usernameTxt" />
        </mx:FormItem>
        <mx:FormItem label="Password:">
            <s:TextInput id="passwordTxt" displayAsPassword="true" />
        </mx:FormItem>
    </mx:Form>
    <s:Button id="loginBtn" label="Login" click="loginBtn_clickHandler(event)" />
</s:SkinnableContainer>
When I click in the username textinput, then attempt to tab to the password textinput, nothing happens.  The defaultButton in the form seems to be ignored as well.  This happens with the mx:TextInput and s:TextInput.  Is there something new that has to be done to make tabbing work?

Answer 1

The popup probably has to be an IFocusManagerContainer.  Is there no Panel or TitleWindow wrapping the whole thing?
Alex Harui
Flex SDK Developer
Adobe Systems Inc.
Blog: http://blogs.adobe.com/aharui